package com.imooc.exception;

import com.imooc.result.CodeMsg;
import com.imooc.result.Result;
import org.springframework.validation.BindException;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import javax.servlet.http.HttpServletRequest;
import java.util.List;


/**
 * Created by ${User} on 2018/10/21
 */
@ControllerAdvice
@ResponseBody
public class GlobalExceptionHandler {
    @ExceptionHandler(value = Exception.class)
    public Result<String> exceptionHandler(HttpServletRequest request,Exception e){
        e.printStackTrace();
        if(e instanceof GlobalException){
            GlobalException ex = (GlobalException) e;
            return Result.error(ex.getCm());
        }else if (e instanceof BindException){
            BindException ex = (BindException) e;
            List<ObjectError> errors = ex.getAllErrors();
            ObjectError error = errors.get(0);
            String message = error.getDefaultMessage();
            return Result.error(CodeMsg.BIND_ERROR.fillArgs(message));

        }else {
            return Result.error(CodeMsg.SERVER_ERROR);
        }

    }
}
